<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="{{ url_for('static',filename='css/index.css') }}">
    <script src="{{ url_for('static',filename='js/index.js') }}"></script>

</head>
<body>
二维码
<img src="{{ url_for('static',filename='jd_seckill/qr_code.png') }}" alt="">
</body>
</html>